74:5B:C5:5 SpringCard
Every MAC address from 74:5B:C5:50:00:00 to 74:5B:C5:5F:FF:FF belongs to a block the IEEE assigned to SpringCard. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 74:5B:C5:5 belongs to
Written 74:5B:C5:5, 74-5B-C5-5 or 745BC55, depending on the system. Look up a full address.
Prefix
74:5B:C5:5/28
Organization
SpringCard
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
74:5B:C5:50:00:00
Last address
74:5B:C5:5F:FF:FF
Address type
Globally unique, unicast
Registered address
2 voie La Cardon, Parc Gutenberg PALAISEAU IDF FR 91120
Parent block
Inside 74:5B:C5
This MA-M block is carved from the 24-bit block 74:5B:C5, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.